CV-18 Fujian/003 CATOBAR carrier thread

by78

General
(Continued from last post...)

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taxiya

Brigadier
Registered Member
The point about steam is something I haven’t thought about. That said, don’t they use distilled water for the steam cats? That shouldn’t be as corrosive as salt water.
I think the problem is the high temparature of the steam. The temparature of the steam in piston and therefor the leaked steam blowing the underside of the aircraft is betwen 340 and 257 degrees Celcius, according to this paper.
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Many binder material in RAM paint can not withstand that high temparature, such as PAN whose melting point is 300 C.
 
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Helius

Senior Member
Registered Member

I really like this video. Shows clear speed difference from Fujian vs Shandong for the J-15.
TBF the ramp launch is shown there conducted from the waist position instead of the bow launch position, so the distance the J-15 would have to travel before clearing the deck would be greater than the J-15T.

Granted a catapult launch would be faster either way, still this is a more apt (as much as ramp launch vs cat launch is apt) illustration -

 

Blitzo

General
Staff member
Super Moderator
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A few posts deleted.

Can people stop referencing and mocking the comments/opinions of other outlets' communities or gawking at how stupid they are being or how "up to date" they are??
We are here to share developments and exchange ideas.

If you want to judge the competency of a content creator or comment section of an article, go somewhere else for that.


If there are comments or opinions from elsewhere that has actual information that holds the basis for constructive discussion related to a thread topic itself, that is fine. But there's no need to reference the "cope" of other places that ends up taking precious posts per page. Current forum structure only allows 10 posts per page for some reason, so be cognizant as to whether what you are writing is actually relevant and constructive to the thread topic please.
 

Ringsword

Senior Member
Registered Member
Also this Fujian launching of these planes-including first J35/5 gen naval fighter by emals vindicates the DC emal vs AC emal systems-and upon further thinking -this is no surprise as China has the world's most advanced/extensive HSR/MAGLEV train systems and the core technologies (powerful induction motors etc)are very close cousins and it wouldn't surprise me to hear that the naval engineers consulted the HSR train engineers(classmates/teachers etc) to solve any problems/tweak glitches in the dc-emal system aboard ship.Case in point recently Paris 2024 Olympics ,the Chinese womens' artistic swimming team had some problems entering/diving into the pool for their routine(which won gold BTW),so they consulted the world-leading Chinese Dive team coaches/staff to help them resolve this pool-entry problem-same ecosystem with each branch helping out another-love it.
 

Blitzo

General
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Super Moderator
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This is a very interesting comparison of the KJ-600 being ejected via EMALS and an E-2C being ejected via the C-13-1 steam catapult from the Nimitz. A smooth and steady rise for the KJ-600 whereas we see an initial drop in the ejection of the E-2C after the wheels leave the deck.

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I'd be cautious about extrapolating much without knowing the circumstances of each aircraft's fuel load, aircraft carrier speed and crosswind etc
 

amchan

New Member
Registered Member
This is a very interesting comparison of the KJ-600 being ejected via EMALS and an E-2C being ejected via the C-13-1 steam catapult from the Nimitz. A smooth and steady rise for the KJ-600 whereas we see an initial drop in the ejection of the E-2C after the wheels leave the deck.

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Isn't that just different procedure? I was under the impression that US Navy procedure was to bank after takeoff for daytime flights.
 

Phead128

Major
Staff member
Moderator - World Affairs
This is a very interesting comparison of the KJ-600 being ejected via EMALS and an E-2C being ejected via the C-13-1 steam catapult from the Nimitz. A smooth and steady rise for the KJ-600 whereas we see an initial drop in the ejection of the E-2C after the wheels leave the deck.

View attachment 161605
Could it be the aircraft carrier is bobbing up and down due to sea conditions? Is the catapult rail the same length and designed power? Also, the aircraft is banking right as is protocol, which affects height measurement due to perspective, so it's not reliable to infer any conclusion with so much uncertainty.
 
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